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Verbal Reasoning - Arithmetic Reasoning

Exercise : Arithmetic Reasoning - Section 1
11.
A is 3 years older to B and 3 years younger to C, while B and D are twins. How many years older is C to D?
2
3
6
12
Answer: Option
Explanation:

Since B and D are twins, so B = D.

Now, A = B + 3 and A = C - 3.

Thus, B + 3 = C - 3 D + 3 = C-3 C - D = 6.

12.
The 30 members of a club decided to play a badminton singles tournament. Every time a member loses a game he is out of the tournament. There are no ties. What is the minimum number of matches that must be played to determine the winner ?
15
29
61
None of these
Answer: Option
Explanation:

Clearly, every member except one (i.e. the winner) must lose one game to decide the winner. Thus, minimum number of matches to be played = 30 - 1 = 29.

13.
In a garden, there are 10 rows and 12 columns of mango trees. The distance between the two trees is 2 metres and a distance of one metre is left from all sides of the boundary of the garden. The length of the garden is
20 m
22 m
24 m
26 m
Answer: Option
Explanation:

Each row contains 12 plants.

There are 11 gapes between the two corner trees (11 x 2) metres and 1 metre on each side is left.

Therefore Length = (22 + 2) m = 24 m.

14.
12 year old Manick is three times as old as his brother Rahul. How old will Manick be when he is twice as old as Rahul ?
14 years
16 years
18 years
20 years
Answer: Option
Explanation:

Manick's present age = 12 years, Rahul's present age = 4 years.

Let Manick be twice as old as Rahul after x years from now.

Then, 12 + x = 2 (4 + x) 12 + x = 8 + 2x x = 4.

Hence, Manick's required age = 12 + x = 16 years.

15.
A tailor had a number of shirt pieces to cut from a roll of fabric. He cut each roll of equal length into 10 pieces. He cut at the rate of 45 cuts a minute. How many rolls would be cut in 24 minutes ?
32 rolls
54 rolls
108 rolls
120 rolls
Answer: Option
Explanation:

Number of cuts made to cut a roll into 10 pieces = 9.

Therefore Required number of rolls = (45 x 24)/9 = 120.

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